1. Nonlinear Identification of a Squeeze-Film Damper
- Author
-
Roger Stanway, John E. Mottershead, and Riaz Firoozian
- Subjects
Engineering ,Mathematical model ,business.industry ,Mechanical Engineering ,Dynamics (mechanics) ,Process (computing) ,Surfaces and Interfaces ,Displacement (vector) ,Surfaces, Coatings and Films ,Damper ,Identification (information) ,Nonlinear system ,Mechanics of Materials ,Control theory ,business ,Excitation - Abstract
In this paper the authors describe an experimental study to identify the damping laws associated with a squeeze-film vibration damper. This is achieved by using a nonlinear filtering algorithm to process displacement responses of the damper ring to synchronous excitation and thus to estimate the parameters in an nth-power velocity model. The experimental facility is described in detail and a representative selection of results is included. The identified models are validated through the prediction of damper-ring orbits and comparison with observed responses.
- Published
- 1988
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